Pith Number

pith:W7ILIQ3P

pith:2006:W7ILIQ3P5Z7EA7BDULSPGI5FAU

not attested not anchored not stored refs pending

Ontologies and Information Extraction

Adeline Nazarenko (LIPN), Claire N\'edellec (MIG)

arxiv:cs/0609137 v1 · 2006-09-24 · cs.AI · cs.IR

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{W7ILIQ3P5Z7EA7BDULSPGI5FAU}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T01:08:54.428371Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b7d0b4436fee7e407c23a2e4f323a5050c5ad025692c0f62e97f5e97192f9bc6

Aliases

arxiv: cs/0609137 · arxiv_version: cs/0609137v1 · doi: 10.48550/arxiv.cs/0609137 · pith_short_12: W7ILIQ3P5Z7E · pith_short_16: W7ILIQ3P5Z7EA7BD · pith_short_8: W7ILIQ3P

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/W7ILIQ3P5Z7EA7BDULSPGI5FAU \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: b7d0b4436fee7e407c23a2e4f323a5050c5ad025692c0f62e97f5e97192f9bc6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "85a998fe935ea927a720a9523655363baeccff1e48bb49ba2849d3e06e83dab3",
    "cross_cats_sorted": [
      "cs.IR"
    ],
    "license": "",
    "primary_cat": "cs.AI",
    "submitted_at": "2006-09-24T20:10:35Z",
    "title_canon_sha256": "9fe4b2f7a98e993a461062661039f920752d688303d09fc10b256130c3ff772b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "cs/0609137",
    "kind": "arxiv",
    "version": 1
  }
}